Disentangling the magnetic force noise contribution in LISA Pathfinder

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Armano, M.; Audley, Heather; Auger, G.; Baird, J.; Binetruy, P. et al.: Disentangling the magnetic force noise contribution in LISA Pathfinder. In: Journal of Physics Conference Series 610 (2015), 12024. DOI: http://dx.doi.org/10.1088/1742-6596/610/1/012024

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Magnetically-induced forces on the inertial masses on-board LISA Path finder are expected to be one of the dominant contributions to the mission noise budget, accounting for up to 40%. The origin of this disturbance is the coupling of the residual magnetization and susceptibility of the test masses with the environmental magnetic field. In order to fully understand this important part of the noise model, a set of coils and magnetometers are integrated as a part of the diagnostics subsystem. During operations a sequence of magnetic excitations will be applied to precisely determine the coupling of the magnetic environment to the test mass displacement using the on-board magnetometers. Since no direct measurement of the magnetic field in the test mass position will be available, an extrapolation of the magnetic measurements to the test mass position will be carried out as a part of the data analysis activities. In this paper we show the first results on the magnetic experiments during an end-to-end LISA Path finder simulation, and we describe the methods under development to map the magnetic field on-board.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2015
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 86 74.78%
2 image of flag of China China 10 8.70%
3 image of flag of United States United States 4 3.48%
4 image of flag of Japan Japan 3 2.61%
5 image of flag of Italy Italy 1 0.87%
6 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 0.87%
7 image of flag of India India 1 0.87%
8 image of flag of United Kingdom United Kingdom 1 0.87%
9 image of flag of France France 1 0.87%
10 image of flag of Brazil Brazil 1 0.87%
    other countries 6 5.22%

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